MassLogger | Threat Level: medium | Type: Infostealer

Cryptographic Identifiers

SHA256b8e84695c8a14f7223d17d6957f4eb1ef4cadba8918911a5988b51a925042cfc
MD57759abbf57abc407475296aeea127c6b
File Typeexe
Size1342.0 KB
First Seen2026-03-06
File Nameb8e84695c8a14f7223d17d6957f4eb1ef4cadba8918911a5988b51a925042cfc
Tagsexe, MassLogger

Malware Family: MassLogger

MassLogger, email keylogger'dır.

TypeInfostealer
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolSMTP/FTP
PurposeEmail keylogger
First Seen Year2020

Threat Indicators (IOC)

  • SHA256: b8e84695c8a14f7223d17d6957f4eb1ef4cadba8918911a5988b51a925042cfc
  • MD5: 7759abbf57abc407475296aeea127c6b

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network immediately
  2. Yeni bir cihazdan banka hesabı, sosyal medya ve e-posta şifrelerini değiştirin
  3. Move crypto wallets to a new address and abandon the old ones
  4. Start a full scan with up-to-date antivirus
  5. Clear saved browser passwords and enable 2FA
  6. Sign out of all sessions on every affected service

YARA Rule Hints

rule MassLogger_SHA256 {
    meta:
        description = "MassLogger sample: b8e84695c8a14f72"
        threat_level = "medium"
        first_seen = "2026-03-06"
    condition:
        hash.sha256(0, filesize) == "b8e84695c8a14f7223d17d6957f4eb1ef4cadba8918911a5988b51a925042cfc"
}

MassLogger — Malware Profile

MassLogger credential stealer. PT2600000043.js Portekiz fatura lurü. CommonJS obfuscation. dispatch configuration data.

Malware Type
Infostealer
Programming Language
C#/.NET
C2 Protocol
SMTP/FTP
Target Systems
Windows

Capabilities & Behavior

Tarayıcı Kimlik Bilgileri
Çerez Hırsızlığı
Kripto Cüzdan Çalma
Sistem Bilgisi
Ekran Görüntüsü
FTP/SSH İstemci Şifreleri
E-posta İstemcisi Çalma
Veri Sızıntısı

IOC List (2 indicators)

IOC — MassLogger
# SHA256 b8e84695c8a14f7223d17d6957f4eb1ef4cadba8918911a5988b51a925042cfc # MD5 7759abbf57abc407475296aeea127c6b
TypeValueNote
sha256 b8e84695c8a14f7223d17d6957f4eb1ef4cadba8918911a5988b51a925042cfc Sample:MassLogger
md5 7759abbf57abc407475296aeea127c6b Sample:MassLogger
Tags
massloggerinfostealermalwaremediumsha256hash-analizi